You are given two carts, A B. They look identical, and you are told that they ar

Question

You are given two carts, A B. They look identical, and you are told that they are made of the same material. You place A at rest on a frictionless track and give B constant velocity directed to the right so that it collides elastically with A. After the collision, both carts move to the right, the velocity of B being smaller than what it was before the collision. What do you conclude? (No explanation required) (a) Cart A is hollow. (b) The two carts are identical. (c) Cart B is hollow. (d) More information is needed./None of the above.

Explanation / Answer

With all the given information, we can't say anything about the mass of block A and B.

Hence correct option: D). More information is needed/ None of the above.

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